Throw in some hardcore and metal music, tattoo artists, video games and sports, and you'll have what it takes to make up the "Music As A Weapon IV Tour." Big music acts to perform on the main stage include the hardcore rock and headlining act Disturbed, as well as Killswitch Engage, Chimaira and Lacuna Coil, an impressive melodic metal act from Italy. In addition, a second stage is set to feature two unsigned regional acts who are winners of the Battle of the Bands in Charlotte and smaller acts including Suicide Silence, Bury Your Dead, Spineshank and Crooked X. For more information on the tour, visit www.musicasaweapon4.com. $39.75. Festival begins at 2 p.m., concert at 7 p.m. Bojangles' Coliseum, 2700 E. Independence Blvd. www.cricketarenacharlotte.com.